#EFFFB5#EFFFB5

#EFFFB5 is a very light, moderate yellow-green. Relative luminance 0.932; OKLCH L 97.1% C 0.096 H 118.1°. Best body text is #000000 at 19.64:1 contrast (WCAG AA passes).

Color values

HEX	#EFFFB5
RGB	rgb(239, 255, 181)
HSL	hsl(73, 100%, 85%)
HSV	hsv(73, 29%, 100%)
CMYK	cmyk(6.3%, 0%, 29%, 0%)
CIE-LAB	lab(97.31, -16.92, 33.71)
CIE-LCH	lch(97.31, 37.72, 116.66°)
OKLab	oklab(97.08% -0.0452 0.0844)
OKLCH	oklch(97.08% 0.096 118.1)
XYZ	xyz(79.6967, 93.2073, 57.4994)
Luminance	0.9321 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFFB5 #C5B5FF

analogous

#FFEAB5 #EFFFB5 #CAFFB5

triadic

#EFFFB5 #B5EFFF #FFB5EF

tetradic

#EFFFB5 #B5FFEA #C5B5FF #FFB5CA

square

#EFFFB5 #B5FFEA #C5B5FF #FFB5CA

split-complementary

#EFFFB5 #B5CAFF #EAB5FF

monochromatic

#D5FF3B #E2FF78 #EFFFB5 #F8FFE0 #F8FFE0

Accessibility & contrast

On white

1.07

#EFFFB5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.64

#EFFFB5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFFB5

19.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFFB5	#FFFFFF	#000000	##000000
##EFFFB5	1.00	1.07	19.64	19.64
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.64	21.00	1.00	1.00
##000000	19.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF7B0

Deuteranopia (green-blind)

#FFF8B8

Tritanopia (blue-blind)

#F6F7EC

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #efffb5;
/* rgb */ color: rgb(239, 255, 181);
/* oklch */ color: oklch(97.1% 0.096 118.1);

Tailwind

colors: {
  custom: {
    50: '#f5ffcb',
    500: '#efffb5',
    950: '#000000',
  },
}

SCSS

$custom: #efffb5;
$custom-light: #f5ffcb;
$custom-dark: #000000;

JSON

{
  "hex": "#efffb5",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 181
  },
  "hsl": {
    "h": 72.973,
    "s": 100,
    "l": 85.49
  },
  "oklch": {
    "l": 0.97082,
    "c": 0.09576,
    "h": 118.1
  },
  "luminance": 0.93207
}

Semantic roles & 50–950 ramp

primary

#EFFFB5

secondary

#8B72E6

accent

#00E632

background

#FFFFFE

surface

#FEFFFA

border

#D6D7D3

text

#171813

muted

#858683

Preview Lab

Preview with #EFFFB5

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →